Wheel-tire.



I'. L. DUNAT.

WHEEL TIRE.

APPUCATION HLED Nov. 2, 1914.

i. 91 @Q9 M3, Paemed Nov, 30,- 1915.

`be vulcanized thereon.

JOSEPH L. DONAT, OF CHICAGO, ILLINOIS.

'W'HEEL-TIRE.

Specification of Letters Patent.

Patented Nov. 30, 1915.

Application led November 2, 1914. Sen'al No. 869,853.

To all whom z'z may concern.'

Be it known that I, JOSEPH L. DONAT, a citien of the United States, residing at Chicago, in the county of Cook and State of illinois, have invented certain new and useful Improvements in Vheel-Tires, of which the follwing is a specification.

'My invention relates to vehicle wheels.

One of the objects of my invention is to improve the tires of such wheels.

A more speciiic object of my invention is to increase the durability of such structures; to render them punctureless; to simplify the construction; to provide a larger air bearing surface; to decrease the molecular disintegration of the fibrous casing due to acute constant flexing of the fabric and to render the structure more conveniently and easily to be assembled.

@ther and further objects of my invention will become readily apparent to persons skilled in the art from a consideration of the following description when taken in conjunction with the drawings, wherein the drawing shows a transverse section through a part-of the spoke, the felly and the tire of my improved wheel.

Onlyfragmentary portions or the wheel structure are shown, the felly 5, spoke 6a-nd' channel rim 7. The tire rim 8, of the usual forni is adapted to slip over the channel rim 's' and `is provided with a movable part 9.

A two part casing 10 and 11 surrounds the` inner air tube 12. The `casing members are cach provided with annularly extending clcucher projections 13 and 14 which may by the tire casing. f

be continuous or located at intervals. A

15 is a metaljrim encompassed by a rubber fabric 16, having a rubber tread 17. The rubber and fabric are incorporated, the one with the other, and the steel or iron rim 15 may be inclosed in this material, which may By this means vthe casing members 10 and 11 are protected from actual contact with the metal rim 15 and a more yielding and elastic yconnection is effected, between the rigid metal tire and the casing members.

To disassemble the structure, or to remove the inner tube 12, it is only necessary to take away the ring 9 when the casing member 11 may be easily slipped out from the fastenings, after which the casing member 10 -may be easily removed,` in the same manner. Should a blow-out occur in: either of the casing members 10 and 11, a new member may lbe substituted without the necessity of removing the companion member, thereby saving half the costin the casing. As the iron ring 15 and the tread 17 are circumferentially continuous and relatively strong a larger bearing surface on the inclosed cushion vof air, within the tube 12 is obtained, and therefore less pressure per square inch within the inner tube 12 is necessary.

When the parts have been assembled, in a manner described, the air pressure Iwithin the inner tube 12 will hold the annular projections 13 and 14: or other such fastenings 1 in intimate contact with the overlying portions containing the grooves within which vsaid projections lie.

Havingdescribed my `invention, what I claim is The combination with a rubber tread member for a circumferentially divided tire casing of a metal clencher ring and a fabric cover entirely inca-sing said ring and vulcanized to the rubber tread, said rubber tread mei-uber covering the fabric ring cover except on the vinner portion thereof engaged JOSEPH L. Donar. In the presence of- Forum BAIN, MARY F. ALLEN. w 

